It is probable that in the brain continuously take place transformations and adstructions [additions], and that the fixation of experience material [patterns in the brain resulting from experience] does involve new bondings and regroupings (to this the sensing substance is specifically ordered anyway), i.e. the fixation of a new experience or impression, but also of a result-of-association, is a new chemical connection between brain cells having sufficient motility and having the proper structural elements, elements already microanatomically demonstrable, in order to realize such a fixation. Similar connection elements are certainly also possessed by the very dense interlacement of the inter-cellular gray substance.
Experiences of partial loss of memory in commotio cerebralis, shock, etc., with its conspicuous dependence on time (preservation of memory is, with higher-power, proportional to distance in time between stimulus intake and "shock"), seem to indicate that the newly formed immediate-bonding, confirming the processing (how much of these bondings are involved is not investigated here), is, it is true, a fully fledged bonding, but mechanically still poorly resistent and easy to break down, but later, as a result of certain elements (perhaps micellation, metamerization, etc.) undergoing a mechanical consolidation. Similar considerations hold for declining-with-age memory, forgetting, pushing away, etc. When the neurons, after conclusion of embryonic development, stop dividing, then this also may mean that subsequent divisions (were they taken away in phylogeny?) are an impediment to the brain function as a result of the generation of "a mess". The irreparability of nerve cells is not only a functional matter, but also an indication for Unimol.
According to data published in 1951, a multiplication of nerve cells in mammals is, until then, not established with certainty. It has, however, been observed that in the case of hypertrophy of tissues as a result of excessive use, also the corresponding and supporting nerve cells (up to about 20 per cent) undergo hypertrophy. So they are able to adapt. The author means : "... So if [in] such [a way] the (for instance) cells of the spinal cord are not fully fixed, there is a certain hope that also the nerve cells of the brain cortex are, upon sufficient effort, still able to get bigger and increase their performance. We just have to train the right cells." Functional increase of cell-size takes place often. It is, for example, investigated in wound healing.